BS EN 2997-002:2016 BSI Standards Publication Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fireresistant or non fire-resistant, operating temperatures — 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak Part 002: Specification of performance and contact arrangements BS EN 2997-002:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 2997-002:2016 It supersedes BS EN 2997-002:2012 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 92599 ICS 49.060 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2016 Amendments/corrigenda issued since publication Date Text affected BS EN 2997-002:2016 EN 2997-002 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM September 2016 ICS 49.060 Supersedes EN 2997-002:2012 English Version Aerospace series - Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures - 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak - Part 002: Specification of performance and contact arrangements Série aérospatiale - Connecteurs électriques circulaires accouplement par bague filetée, résistant au feu ou non, températures d'utilisation - 65 °C 175 °C continu, 200 °C continu, 260 °C en pointe - Partie 002 : Spécification de performances et d'arrangements des contacts Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Schraubkupplung, feuerbeständig oder nicht feuerbeständig, Betriebstemperaturen - 65 °C bis 175 °C konstant, 200 °C konstant, 260 ° C Spitze - Teil 002: Leistungsdaten und Kontaktanordnungen This European Standard was approved by CEN on April 2016 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 2997-002:2016 E BS EN 2997-002:2016 EN 2997-002:2016 (E) Contents Page European foreword Introduction Scope .4 Normative references .4 Model description and codification of models Terms and definitions Operating conditions Connector type codes 10 Polarization 12 Housing sizes and contact arrangements 13 Contacts 22 10 Sealing plugs 22 11 Cable outlets 22 12 Tooling 22 13 Assembly and wiring instruction 22 BS EN 2997-002:2016 EN 2997-002:2016 (E) European foreword This document (EN 2997-002:2016) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN) After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2017, and conflicting national standards shall be withdrawn at the latest by March 2017 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document supersedes EN 2997-002:2012 According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 2997-002:2016 EN 2997-002:2016 (E) Introduction This family of connectors is derived from MIL-DTL-83723 series III, type T with which it is intermateable Scope This European Standard defines the performance and contact arrangements of circular electrical connectors, coupled by threaded ring It also lists the product standards and models available for selection in this series Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 2591-202, Aerospace series — Elements of electrical and optical connection — Test methods — Part 202: Contact resistance at rated current EN 2591-209, Aerospace series — Elements of electrical and optical connection — Test methods — Part 209: Current temperature derating EN 2997-001, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 001: Technical specification EN 2997-003, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 003: Square flange receptacle — Product standard EN 2997-004, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 004: Jam-nut mounted receptacle — Product standard EN 2997-005, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 005: Hermetic square flange receptacle — Product standard EN 2997-006, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 006: Hermetic jam-nut mounted receptacle — Product standard EN 2997-007, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 007: Hermetic receptacle with round flange attached by welding or brazing — Product standard BS EN 2997-002:2016 EN 2997-002:2016 (E) EN 2997-008, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 008: Plug — Product standard EN 2997-009, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 009: Protective cover for receptacle — Product standard EN 2997-010, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 010: Protective cover for plug — Product standard EN 2997-011, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 011: Dummy receptacle — Product standard EN 2997-012, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 012: Jam-nut for jam-nut receptacles — Product standard EN 2997-013, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 013: O-ring seal for jam-nut receptacles — Product standard EN 2997-014, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 014: Square flange receptacle with integrated accessory — Product standard EN 2997-015, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 015: Jam-nut mounted receptacle with integrated accessory — Product standard EN 2997-016, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant or non fire-resistant, operating temperatures − 65 °C to 175 °C continuous, 200 °C continuous, 260 °C peak — Part 016: Plug with integrated accessory — Product standard EN 3155-002, Aerospace series — Electrical contacts used in elements of connection — Part 002: List and utilization of contacts EN 3155-004, Aerospace series — Electrical contacts used in elements of connection — Part 004: Contacts, electrical, male, type A, crimp, class T — Product standard EN 3155-005, Aerospace series — Electrical contacts used in elements of connection — Part 005: Contacts, electrical, female, type A, crimp, class T — Product standard EN 3155-018, Aerospace series — Electrical contacts used in elements of connection — Part 018: Contacts, electrical, male, type A, crimp, class S — Product standard EN 3155-019, Aerospace series — Electrical contacts used in elements of connection — Part 019: Contacts, electrical, female, type A, crimp, class S — Product standard EN 3155-080, Aerospace series — Electrical contacts used in elements of connection — Part 080: Contacts, size 22 for EN 2997, electrical, male, type A, crimp, class T — Product standard BS EN 2997-002:2016 EN 2997-002:2016 (E) EN 3155-081, Aerospace series — Electrical contacts used in elements of connection — Part 081: Contacts, size 22 for EN 2997, electrical, female, type A, crimp, class T — Product standard EN 3197, Aerospace series — Design and installation of aircraft electrical and optical interconnection systems EN 3660-002, Aerospace series — Cable outlet accessories for circular and rectangular electrical and optical connectors — Part 002: Index of product standards EN 4529-002, Aerospace series — Elements of electrical and optical connection — Sealing plugs — Part 002: Index of product standards MIL-DTL-83723, Connectors, electrical, (circular, environment resisting), receptacles and plugs, general specification for 1) Model description and codification of models See Table 1) Published by: DoD National (US) Mil Department of Defense http://www.defenselink.mil/ BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Model description (1 of 2) Class Model description Connectors W WS K KV SV SF R RS S Y KE SE YE Sealed plug with housing (shell) in olive-green cadmium-plated aluminium alloy, conductive finish, 500 h resistance to salt mist, crimp contacts, maximum operating temperature 175 °C continuous Sealed plug and receptacle with housing (shell) in olive-green cadmium-plated aluminium alloy, conductive finish, 500 h resistance to salt mist, crimp contacts, plug with grounding-spring-system, maximum operating temperature 175 °C continuous Sealed plug with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, maximum operating temperature 200 °C continuous Sealed plug with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, high vibrations, maximum operating temperature 260 °C peak Sealed plug and receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, high vibrations, plug with grounding-spring-system, maximum operating temperature 260 °C peak Sealed plug and receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire-resistant (including fire immersion), high vibrations, plug with grounding-spring-system, maximum operating temperature 260 °C peak Sealed plug with housing (shell) in nickel-plated aluminium alloy, 48 h resistance to salt mist, crimp contacts, maximum operating temperature 200 °C continuous Sealed plug and receptacle with housing (shell) in nickel-plated aluminium alloy, 48 h resistance to salt mist, crimp contacts, plug with grounding-spring-system, maximum operating temperature 200 °C continuous Sealed plug and receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, plug with grounding-springsystem, maximum operating temperature 200 °C continuous Hermetic receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, solder contacts, maximum operating temperature 200 °C continuous Sealed plug with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, maximum operating temperature 260 °C peak Sealed plug and receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, crimp contacts, fire resistant, plug with grounding-springsystem, maximum operating temperature 260 °C peak Hermetic receptacle with housing (shell) in passivated stainless steel, 500 h resistance to salt mist, solder contacts, maximum operating temperature 260 °C peak BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Model description (2 of 2) Class Model description Protective covers K Protective cover for plug in passivated corrosion resisting steel, 500 h resistance to salt mist – Maximum operating temperature 200 °C continuous W Protective cover for receptacle or plug in olive-green cadmium-plated aluminium alloy, 500 h resistance to salt mist – Maximum operating temperature 175 °C continuous R KE Protective cover for receptacle or plug in nickel-plated aluminium alloy, 48 h resistance to salt mist – Maximum operating temperature 200 °C continuous Protective cover for receptacle or plug in passivated corrosion resisting steel, 500 h resistance to salt mist – Maximum operating temperature 260 °C peak Dummy receptacles K R W KE Dummy receptacle in passivated stainless steel, 500 h resistance to salt mist – Maximum operating temperature 200 °C continuous Dummy receptacle in nickel-plated aluminium alloy, 48 h resistance to salt mist – Maximum operating temperature 200 °C continuous Dummy receptacle in olive-green cadmium-plated aluminium alloy, 500 h resistance to salt mist – Maximum operating temperature 175 °C continuous Dummy receptacle in passivated corrosion resisting steel, 500 h resistance to salt mist – Maximum operating temperature 260 °C peak Terms and definitions For the purposes of this document, the terms and definitions given in EN 2997-001 apply Operating conditions 5.1 General Tables and show: Combinations marked by “yes” achieve the characteristics specified for the two classes Combinations marked by “yes*” achieve the lowest characteristics of the two classes All other combinations are under the responsibility of the user BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Permissible cables Dimensions in millimetres Outer diameter of cables Contact size 22 20 0,85 1,68 1,22 2,77 0,85 16 12 1,9 5.5 Operating characteristics max 2,11 3,61 5.5.1 Electrical conditions For operating temperature including self-heating from electrical operation see EN 2591-209 For rated test current refer to the relevant contact standard for removable contacts For solder contacts refer to EN 2997-001 test requirements listed against test EN 2591-202 requirements Insulation resistance at ambient temperature: 000 MΩ Withstand voltage at sea level: 500 V r.m.s Withstand voltage from 15 000 m to 30 000 m: 000 V r.m.s (connector mated) 5.5.2 Climatic conditions Operating temperatures: minimum temperature: − 65 °C; maximum temperature: see Table Furthermore, the connector operating temperature shall be limited to the maximum operating temperature indicated in the product standards for contacts Corrosion resistance and fluid resistance: see EN 2997-001; Salt mist resistance: see Table and EN 2997-001 5.5.3 Mechanical conditions Mechanical endurance, see EN 2997-001: 500 mating and unmating operations, Connector type codes 250 mating and unmating operations for class R, RS, W and WS See Table for codes For spare parts not listed in this specification, refer to the relevant product standard 10 BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Connector type codes (1 of 2) Model Connectors A C Class WS RS S SE SV SF Y YE WS RS S SE SV SF Y YE W K R KE KV WS RS S SE SV SF WS RS S SE SV SF R K W KV KE WS RS S SE SV SF Y YE Product standard Model description EN 2997-003 Square flange receptacle EN 2997-005 Hermetic square flange receptacle EN 2997-014 Square flange receptacle with integrated cable outlet EN 2997-007 Hermetic receptacle with round flange attached by welding or brazing EN 2997-008 Plug without grounding spring system EN 2997-008 Plug with grounding spring system EN 2997-016 Plug with grounding spring system and integrated cable outlet EN 2997-016 Plug without grounding spring system but with integrated cable outlet EN 2997-004 Jam-nut mounted receptacle EN 2997-006 Hermetic jam-nut mounted receptacle 11 BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Connector type codes (2 of 2) Model Class WS RS S SE SV SF B Protective covers Dummy receptacle R W KE K R W KE K R W KE Spare parts K W R – Product standard Model description EN 2997-015 Jam-nut mounted receptacle with integrated cable outlet EN 2997-009 Protective cover for receptacle EN 2997-010 Protective cover for plug EN 2997-011 Dummy receptacle EN 2997-012 Nut (For Jam-nut mounted receptacle) EN 2997-013 O-ring seal Polarization See Table for available polarizations (marked *) Table — Polarization Polarizations positions N Y 12 Housing sizes 08 * * * * * – 10 * * * * * * 12 * * * * * * 14 * * * * * * 16 * * * * * * 18 * * * * * * 20 * * * * * * 22 * * * * * * 24 * * * * * * 28 * * * * * * BS EN 2997-002:2016 EN 2997-002:2016 (E) Housing sizes and contact arrangements See Table and Figures to 32 Table — Housing sizes and contact arrangements (1 of 2) Housing sizes Contacts Arrangements Number Size 08 03 20 08 98 20 08 10 10 10 10 12 12 12 14 14 14 14 16 16 18 18 18 06 02 05 06 6 12 12 12 12 04 03 21 07 12 21 15 15 24 24 10 08 14 31 10 14 31 22 20 20 20 22 16 20 22 12 16 20 16 20 16 20 12 16 20 13 BS EN 2997-002:2016 EN 2997-002:2016 (E) Table — Housing sizes and contact arrangements (2 of 2) Housing sizes 20 20 Number Size 16 16 16 12 25 28 20 39 22 12 22 37 19 19 22 32 22 39 24 30 55 43 24 57 28 42 24 24 41 30 a 24 19 41 22 22 14 Arrangements 20 20 a Contacts 61 This arrangement is not available for new design 12 24 26 27 12 55 30 23 20 55 61 42 20 20 12 20 16 20 12 16 20 12 20 12 20 16 20 16 20 16 20 12 20 16 BS EN 2997-002:2016 EN 2997-002:2016 (E) 08-06 08-03 contacts size 20 contacts size 22 08-98 contacts size 20 Figure Figure Figure 10-02 contacts size 20 10-05 contacts size 20 10-06 contacts size 20 10-12 12 contacts size 22 Figure Figure Figure Figure 12-03 contacts size 16 12-12 12 contacts size 20 12-21 21 contacts size 22 Figure Figure Figure 10 15 BS EN 2997-002:2016 EN 2997-002:2016 (E) 14-04 contacts size 12 Figure 11 14-15 15 contacts size 20 Figure 14 16 14-07 contacts size 16 Figure 12 16-10 10 contacts size 16 Figure 15 14-12 contacts size 20 contacts size 16 Figure 13 16-24 24 contacts size 20 Figure 16 BS EN 2997-002:2016 EN 2997-002:2016 (E) 18-08 contacts size 12 18-14 14 contacts size 16 18-31 31 contacts size 20 Figure 17 Figure 18 Figure 19 20-16 16 contacts size 16 20-25 19 contacts size 20 contacts size 12 Figure 20 Figure 21 17 BS EN 2997-002:2016 EN 2997-002:2016 (E) 18 20-28 24 contacts size 20 contacts size 12 20-39 37 contacts size 20 contacts size 16 Figure 22 Figure 23 20-41 41 contacts size 20 22-12 12 contacts size 12 Figure 24 Figure 25 BS EN 2997-002:2016 EN 2997-002:2016 (E) 22-19 19 contacts size 16 22-30 24 contacts size 20 contacts size 16 Figure 26 This arrangement is not available for new design Figure 27 22-32 26 contacts size 20 contacts size 12 22-39 27 contacts size 20 12 contacts size 16 This arrangement is not available for new design Figure 28 Figure 29 19 BS EN 2997-002:2016 EN 2997-002:2016 (E) 20 22-55 55 contacts size 20 24-30 30 contacts size 16 Figure 30 Figure 31 24-43 23 contacts size 20 20 contacts size 16 24-57 55 contacts size 20 contacts size 12 Figure 32 Figure 33 BS EN 2997-002:2016 EN 2997-002:2016 (E) 24-61 61 contacts size 20 28-42 42 contacts size 16 Figure 34 Figure 35 21 BS EN 2997-002:2016 EN 2997-002:2016 (E) Contacts Removable contacts which can be used with the various classes of connectors are indicated in EN 3155-002 EXAMPLE EXAMPLE EXAMPLE For 175 °C and 200 °C continuous classes: — male contacts according to EN 3155-018; — female contacts according to EN 3155-019 For 260 °C peak class: — male contacts according to EN 3155-004; — female contacts according to EN 3155-005 For 260 °C peak class high vibrations: — male contacts according to EN 3155-080; — female contacts according to EN 3155-081 10 Sealing plugs Sealing plugs defined in EN 4529-002 shall be used in the grommet cavities which correspond to unwired contacts 11 Cable outlets For details about cable outlets suitable for use if applicable with connectors listed herein refer EN 3660-002 12 Tooling The tooling for crimping, installing and extracting removable contacts is indicated in the standards for contacts 13 Assembly and wiring instruction See EN 3197 22 This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Reproducing extracts 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